点(2,-3)关于原点对称的坐标为( )
A: (2
B: (2
C: (-2
D: (-2
A: (2
B: (2
C: (-2
D: (-2
举一反三
- 点(2,-3)关于原点对称的坐标为( ) A: (2 ,-3) B: (2 ,3) C: (-2 ,3) D: (-2 ,-3)
- 点(1, 2, 3)关于坐标原点O对称的点的坐标为( ) A: (-1, -2, -3) B: (-1, -2, 3) C: (1, 2, -3) D: (1, 2, 3)
- 点(2,3)关于坐标原点对称的点的坐标是 A: (-2,3) B: (-2,-3) C: (2,-3) D: (3,2)
- 在平面直角坐标系中,点(2,3)关于原点对称的点的坐标是( )() A: (-2,<br/>3) B: (-2,-3) C: (-3,-2) D: (2,-3)
- 点M(2,-3,1)关于坐标原点对称的点是( ) A: (-2,3,-1) B: (-2,-3,-1) C: (2,-3,-1) D: (-2,3,1)